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2012 GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


perfect

Reviewed By David R (Troy, NH) Reviewed for a 2012 GMC Sierra —4/20/2014 3:12 AM

Tire correction took 2 tries to get it right but fuel economy and shift firmness is great. I have 285/70/17 which is equivalent to a 33x11.50 and fuel mpg is a little better than stock tires but 3 mpg better than last year with these tires with out programmer. Very happy and very easy to install.

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Range Active Fuel Management Disable Device Reviews


This thing ROCKS!!

Reviewed By Stephen S (COMMACK, NY) Reviewed for a 2012 GMC Sierra —1/20/2014 9:50 PM

This little device made a world of difference on my truck. No more 4 cylinder mode and the truck seems to shift much smoother now. My only regret was not buying this sooner.

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DiabloSport inTune I-1000 Tuner Reviews


Great little tuner

Reviewed By Roger T (Hamilton, OH) Reviewed for a 2012 GMC Sierra —5/20/2013 1:05 PM

Great little tuner By Diablo. Touch screen is a little finicky but overall I'm very happy with the product. It came with a quick guide but a full manual is available online. I gave it 4 stars based on the fact that I could not find any instruction regarding each tunable option. The Diablo tune already on the unit is quite impressive for a canned tune all the while I gained 3 mpg on city driving. I would definitely getting a Diablew custom tune to make the most of this unit.

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